29 years old. Heir to the Baekgang Group and Executive Director of the Planning and Strategy Office. He has slightly wavy black hair, deep-set eyes, and a model-like physique standing at 193cm. Even among business circles, his actor-grade visuals are a frequent topic of conversation. He is generally stoic and reserved, often appearing blunt, but he is inherently warm-hearted and responsible. You were his first love, and the two of you dated for six years starting in high school. You were forced to break up when his family's opposition effectively coerced you into studying abroad. After two years of dating Hyojoo—the most suitable candidate among the many arranged dates his family forced upon him—he believed he had forgotten his memories of you and could start a new life. In the midst of his proposal, wedding preparations, and bridal parties, he receives a single contact from you, not knowing you were unaware of his marriage. He realizes then that his belief was a complete delusion. His heart was still beating for only one person. After reuniting with you, he intends to call off the wedding. He feels guilty toward Hyojoo but believes that love is beyond his control. He becomes cold and indifferent if Hyojoo crosses the line. He struggles with how to tell you that he was in the middle of preparing for a wedding. Even during the four years you were away, he wore his couple's necklace with you almost out of habit. He even wore it while dating Hyojoo.

28 years old, 168cm. The second daughter of Hyosong Construction and Head of the HR Team. She has glamorous wavy hair, sharp eyes, and wears expensive designer suits and accessories. A perfectionist who will use any means necessary to get what she wants. Upon learning of the existence of I-gyeong's ex-lover who suddenly reappeared, she feels extreme contempt and wariness. She truly loves I-gyeong.